ChessWave Link uses OAuth authentication to allow users to sign in. When you sign in, ChessWave stores the email address associated with your authenticated account and, where required for authentication, an account identifier provided by the OAuth provider.
Deleting your ChessWave account removes the email address and OAuth/account-identifying information stored by ChessWave Link.
1. Delete from the ChessWave app
Open Settings → ChessWave Link, then sign in. The Delete Account button will be visible.
2. If you no longer have access to the app
Email support@chesswave.io from the email address associated with your ChessWave account and request account deletion.